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Collisions with commercial trucks leave victims facing serious injuries and urgent questions about what caused the crash. One question that shapes every truck accident claim is: “How many hours can a truck driver drive?”
The Federal Motor Carrier Safety Administration (FMCSA) is clear on this: commercial property-carrying drivers may operate a maximum of 11 hours within a 14-hour on-duty window, must take 10 consecutive hours off-duty after that window closes, and are required to take a 30-minute break after 8 cumulative hours of driving. When those limits are crossed on Tennessee roads, the consequences fall on everyone else.
At Hughes & Coleman Injury Lawyers, our Tennessee truck accident lawyers help injured victims understand their rights and pursue the compensation they deserve under the law.
Understanding how many hours a truck driver can drive starts with federal law. The Federal Motor Carrier Safety Administration sets these limits for all commercial property-carrying drivers in interstate commerce, including those operating across Tennessee:
Drivers may also split the required off-duty time using a sleeper berth. According to 49 CFR Part 395, “a driver may accumulate the equivalent of at least 10 consecutive hours off-duty by taking not more than two periods of either sleeper berth time or a combination of off-duty time and sleeper berth time if: (A) Neither rest period is shorter than 2 consecutive hours; (B) One rest period is at least 7 consecutive hours in the sleeper berth; (C) The total of the two periods is at least 10 hours.” That provision exists for driver flexibility, not as a method for extending time on the road beyond safe limits.
Tennessee sits along some of the busiest freight corridors in the country, and pressure to meet delivery windows is constant. When drivers or carriers ignore the rules, specific violations appear in crash investigations.
The most frequently documented Hours-of-Service HOS violations may include:
When an HOS violation happens before a crash in Tennessee, it does not simply disappear. It can become important evidence in a truck accident claim.
For an injured victim, an HOS violation is direct evidence that a driver was operating in a condition known to impair reaction time, judgment, and control. Showing that fatigue contributed to the crash can become an important part of the case.
Evidence used to document violations may include ELD data, driver logbooks, GPS records, fuel receipts, and dispatch communications. Some of that evidence can disappear quickly if it is not preserved early. ELD data can be overwritten within days of a crash, so acting quickly is essential.
Tennessee follows a comparative fault system, meaning insurers seek ways to reduce their exposure. A documented HOS violation shifts focus to the driver’s hours before impact, making a clear argument that the harm was preventable.
One violation by one driver may reflect individual poor judgment. Repeated violations across multiple drivers or routes may indicate broader problems within the trucking company. Trucking companies set dispatch schedules, manage delivery deadlines, and monitor ELD data. When those schedules require exceeding legal limits to complete, accountability does not stop with the driver.
Carrier records, including dispatch logs, inspection reports, and internal communications, can reveal whether management knew violations were occurring. Tennessee’s one-year statute of limitations for personal injury claims means this evidence must be preserved quickly. When a company’s own records show a pattern of pushing drivers past legal limits, that documentation can strengthen a claim.
Related Reading: Do Truck Drivers Get Drug Tested?
Evidence in truck crashes moves fast, and waiting can mean losing it permanently. Our team at Hughes & Coleman Injury Lawyers can help answer the question “How many hours can a truck driver drive?”, review HOS records, and guide injured victims across Tennessee through every step of the process.
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